What is a Test Point?

PCB Test Point Description

A test point is a small metal terminal used as a connection point to test circuitry on printed circuit boards (PCBs). Typical PCB test points are wire formed loops surrounded by colored insulators. The insulator color allows the test points’ type or location to be mapped on the PCB, thereby streamlining the testing process. Test point loops allow for easy test connections using alligator clips, probes, and test hooks. More sophisticated test points may function as actual connectors allowing test leads to be plugged into the test point. PCB test points are also known as test terminals, PCB mountable terminals, loop type terminals, and test sockets.

PCB Test Point Uses

Test points are used to test PCB circuitry during manufacturing and assembly to ensure that equipment is working properly

Test points are used to test circuitry during repair to pinpoint equipment failures

Bare Wire Formed PCB Test Point

Insulated PCB Test Points

PCB Test Point Socket

Test Point Configurations

Aside from the three primary styles of test points there are many test point configuration options to consider. These options include loop size, socket size, test point height, insulator material, test point material, test point finish, and insulator color.